DMA Request Select Register 1
| DRQSEL10 | Interrupt signal of EP1 DRQ of USB ch.1 is output to transfer request to DMAC through extended selector |
| DRQSEL11 | Interrupt signal of EP2 DRQ of USB ch.1 is output to transfer request to DMAC through extended selector |
| DRQSEL12 | Interrupt signal of EP3 DRQ of USB ch.1 is output to transfer request to DMAC through extended selector |
| DRQSEL13 | Interrupt signal of EP4 DRQ of USB ch.1 is output to transfer request to DMAC through extended selector |
| DRQSEL14 | Interrupt signal of EP5 DRQ of USB ch.1 is output to transfer request to DMAC through extended selector |